DOYLE, CALIFORNIA

Period of Record General Climate Summary - Heating Degree Days

Station:(042504) DOYLE
From Year=1948 To Year=2006
Heating Degree Days for Selected Base Temperature (F)
Base	Jan.	Feb.	Mar.	Apr.	May	Jun.	Jul.	Aug.	Sep.	Oct.	Nov.	Dec.	Annual
65	1071	829	743	474	300	122	11	20	106	383	699	989	5746
60	916	687	588	326	179	52	1	2	44	244	549	834	4421
57	823	603	496	242	122	27	0	0	24	174	460	741	3710
55	761	547	434	193	92	15	0	0	15	133	400	679	3269
50	606	408	285	95	38	2	0	0	5	62	260	524	2285

Heating Degree Day units are computed as the difference between the base temperature and the daily average temperature. (Base Temp. - Daily Ave. Temp.) One unit is accumulated for each degree Fahrenheit the average temperature is below the base temperature. Negative numbers are discarded. Example: If the days high temperature was 65 and the low temperature was 31, the base 50 heating degree day units is 50 - ((65 + 31) / 2) = 2. This is done for each day of the month and summed.
Table updated on Jul 28, 2006
Months with 5 or more missing days are not considered
Years with 1 or more missing months are not considered

Western Regional Climate Center, wrcc@dri.edu